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Re: Screw seized on door panel
Agree with above. As drilling goes, in case you're not used to it, apply oil to the bit and/or screw. Use the smallest bit you can get away with without busting one, you shouldn't need more than an 1/8" for a 1/4" screw. Smaller if the problem is the stainless steel above the panel, those screws are #10.
Bits generally bust because of not shooting straight right. Personally I'd use a good bit, IRWIN has never let me down, drilled 3/8" grade 8 bolt for me too, through the thread top to bottom (yikes).
Spraying with water as you drill helps too, bits like to be cool. Defeats the purpose to have a bit spin going nowhere.
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Tony
71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring it from ground up. With assys, the guide accts for 1000s of OEM identifications and part numbers, all written in short order. 700+ images include assm, illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025
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